JS获取Url参数的方法

function UrlSearch() { ???var name, value; ???var str = location.href; //取得整个地址栏 ???var num = str.indexOf("?") ???str = str.substr(num + 1); //取得所有参数 ??stringvar.substr(start [, length ] ???var arr = str.split("&"); //各个参数放到数组里 ???for (var i = 0; i < arr.length; i++) { ???????num = arr[i].indexOf("="); ???????if (num > 0) { ???????????name = arr[i].substring(0, num); ???????????value = arr[i].substr(num + 1); ???????????this[name] = value; ???????} ???}};

var Request = new UrlSearch();code = Request.code == undefined ? "" : Request.code;